Apple released iOS 5 Beta 4 this past Friday, and there have already been numerousfindings uncovered in Apple’s lasest build. With an iOS 5 announcement set to happen in September, we’re getting closer and closer to a final GM release of iOS 5 before it hits the public.

According to jailbreak hacker iH8sn0w, iOS 5 Beta 4 is set to expire on August 31. That gives Apple a little over a month to release the next iOS 5 beta.

Beta 4 could very be Apple’s last beta release of iOS 5 before its public launch this Fall, but there’s always a chance one more beta could drop before Apple’s next announcement. We’ll keep you posted!